Examples of infertility in the following topics:
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- Factors that can cause male as well as female infertility are:
- Tobacco smokers are 60% more likely to be infertile than non-smokers.
- The main cause of male infertility is low semen quality.
- In some cases, both the man and woman may be infertile or sub-fertile, and the couple's infertility arises from the combination of these conditions.
- In the U.S., up to 20% of infertile couples have unexplained infertility.
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- These systems may be used to avoid pregnancy by restricting unprotected intercourse to days identified as infertile.
- Most menstrual cycles have several days at the beginning that are infertile (pre-ovulatory infertility), a period of fertility, and then several days just before the next menstruation that are infertile (post-ovulatory infertility).
- A woman whose menstrual cycles ranged in length from 30 to 36 days would be estimated to be infertile for the first 11 days of her cycle (30 - 19 = 11), to be fertile on days 12 to 25, and to resume infertility on day 26 (36 - 10 = 26).
- Days 1 to 7 of a woman's menstrual cycle are considered infertile.
- For these women, the rhythm method formula incorrectly identifies a few fertile days as being in the infertile period.
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- This approach may be undertaken as a voluntary choice or due to infertility.
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- Adhesion-related twisting and pulling of internal organs can result in complications such as infertility and chronic pelvic pain.
- Surgery inside the uterine cavity (e.g., suction D&C, myomectomy, endometrial ablation) can result in Asherman's Syndrome (also known as intrauterine adhesions), a cause of infertility.
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- Risk factors include: pelvic inflammatory disease, infertility, use of an intrauterine device (IUD), previous exposure to DES, tubal surgery, intrauterine surgery (e.g.
- Fertility following ectopic pregnancy depends upon several factors, the most important of which is a prior history of infertility.
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- Infertile women and those with a condition called endometriosis, and those who use postmenopausal estrogen replacement therapy are at increased risk.
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- Endometriosis is typically seen during the reproductive years; it is estimated to occur in roughly 6–10% of women; and is a common finding in women with infertility.
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- In almost all mammals, lactation induces a period of infertility, which serves to provide the optimal birth spacing for survival of the offspring.
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- Other symptoms, including sinus infections, poor growth, and infertility affect other parts of the body.